Skewness and Kurtosis: Important Parameters in the Characterization of Dental Implant Surface Roughness—A Computer Simulation

<table>Two rough surfaces in cross-section. The <svg height="14.35" id="M6" style="vertical-align:-3.22282pt" version="1.1" viewbox="0 0 17.799999 14.35" width="17.799999" xmlns="http://www.w3.org/2000/svg">
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<tspan style="font-size: 12.50px; " x="0" y="0">𝑅</tspan>
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<text transform="matrix(1,0,0,-1,-62.7,60.66)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑎</tspan>
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</g>
</svg>, <svg height="16.237499" id="M7" style="vertical-align:-4.74141pt" version="1.1" viewbox="0 0 17.762501 16.237499" width="17.762501" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,16.2375)">
<g transform="translate(72,-59.01)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑅</tspan>
</text>
<text transform="matrix(1,0,0,-1,-62.7,60.66)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑞</tspan>
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</svg>, <svg height="14.5625" id="M8" style="vertical-align:-3.20526pt" version="1.1" viewbox="0 0 30.237499 14.5625" width="30.237499" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.5625)">
<g transform="translate(72,-60.35)">
<text transform="matrix(1,0,0,-1,-71.95,63.6)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑅</tspan>
<tspan style="font-size: 12.50px; " x="9.2522202" y="0">𝑆</tspan>
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<text transform="matrix(1,0,0,-1,-54.57,60.47)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑚</tspan>
</text>
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</g>
</svg>, and <svg height="14.35" id="M9" style="vertical-align:-3.22281pt" version="1.1" viewbox="0 0 21.424999 14.35" width="21.424999" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.35)">
<g transform="translate(72,-60.52)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑅</tspan>
</text>
<text transform="matrix(1,0,0,-1,-62.7,60.66)">
<tspan style="font-size: 8.75px; " x="0" y="0">d</tspan>
<tspan style="font-size: 8.75px; " x="4.3759999" y="0">r</tspan>
</text>
</g>
</g>
</svg> parameters are the same for the two surfaces. The interface shear strength is much higher for surface (a) than for surface (b).</table>

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fig1

Figure 1

Figure 1: Skewness and Kurtosis: Important Parameters in the Characterization of Dental Implant Surface Roughness—A Computer Simulation 